To be able to build this structure, before buying it for $ 2,800,000, you have to have obtained all 12 unique Byzantine Palace blueprint pieces (#1-#12), which combined will create the Drawing "Byzantine Palace".

Note: the Blueprint pieces found by cleaning friends islands go towards to Wonder of the World quest stages, not these buildings.

Note: Several drawing buildings including this one cannot currently (as of version 2.2.6) be built from the special buildings menu. They can only be built from the Drawings menu by tapping on the completed blueprint "Build" button.